student_list = [["张三", "18", "功能测试"], ["李四", "20", "自动化测试"], ["王五", "22",
["python", "java"]]]

print(student_list[0])
aa = student_list[0]
print(aa[1])
print(student_list[0][1])
print(student_list[1][0])
print(student_list[2][2][1])